BORLA(r) is proud to present their exhaust systems for the Ford Explorer ST, Explorer Platinum, and Lincoln Aviator. Our Cat - Back(tm) systems have been specifically developed for the 3.0L V6 EcoBoost engine with performance and sound in mind. The S - Type Cat - Back(tm) system delivers a balanced, sporty sound without adding any drone inside the vehicle to ensure an enjoyable driving experience. The front muffler contains an internal H - Pipe for increased performance and improved sound. This system features black chrome on T - 304 stainless steel tips, but is also available with bright chrome on T - 304 stainless steel or carbon fiber tips. Using BORLA(r) Stainless Steel Polish p 21461 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber cloth. Our exhaust is constructed using premium T - 304 stainless steel and bolts on to the factory system for stress - free installation. Add power and a balanced, sporty sound to your vehicle, bolt on a BORLA(r). Cat - Back(tm) Exhaust System S - Type Sound Level No Drone Quad 4 Black Chrome On T - 304 Stainless Steel Tips Bolt On Installation T - 304 Stainless Steel Construction Million - Mile Warranty Best of all, BORLA(r) stands behind every system with a Million - Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.